JPS6085720A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vacuum cleaner equipped with a rotating brush for removing dust attached to a surface to be cleaned.

2. Description of the Related Art Conventional Structures and Problems There have been conventionally known vacuum cleaners equipped with a rotating brush that separates dust attached to a surface to be cleaned from the surface to be cleaned.

The structure will be explained based on FIG. 1. In the figure, 1 is a vacuum cleaner main body, and an electric blower 2 is provided inside the vacuum cleaner main body. Reference numeral 3 designates a floor nozzle, inside which a rotary brush 4 is rotatably supported by bearings 5, 5, and the rotary brush 4 is rotated by a rotary brush electric motor 6 and a perdoor. Dust separated from the surface to be cleaned by the rotating brush 4 passes through the suction passage 9 from the suction port 8 and is sucked into the dust collection chamber 11 configured below the filter 10.

However, in the above configuration, since there are two electric motors, an electric blower and a rotary plan motor, the weight becomes heavy and the cost increases. Furthermore, since the electric motor for the rotating brush is housed, the floor nozzle has the disadvantage of becoming harsh.

There are also existing vacuum cleaners that have an electric blower built into the bottom of the vacuum cleaner and drive a rotating brush with the electric blower.
The suction port is connected to the dust collection chamber with a hose, which is a long distance, resulting in large losses.Also, since the electric blower is placed horizontally, the main body is wide.

Purpose of the Invention In view of the above-mentioned drawbacks, the present invention reduces weight and cost by driving the blower and rotating brush with one electric motor, shortens the suction distance and reduces loss, and also reduces the loss by driving the blower and rotating brush on floors, folding etc. To provide a vacuum cleaner in which a rotating brush does not rotate when it is not needed.

Structure of the Invention In order to achieve this object, the vacuum cleaner of the present invention is provided with a power transmission shaft for transmitting power from an electric blower to a rotating brush, and a clutch mechanism is provided in the middle of the power transmission shaft.

With this configuration, the electric blower can be placed vertically on the top of the vacuum cleaner body, and power can be transmitted from the electric blower to the rotating brush, eliminating the need for a single-rotation brush motor, reducing weight and cost.

The main body of the vacuum cleaner is also assembled, which reduces loss due to suction. In addition, when a rotating brush is not required for a 5-bed floor or tatami mat, transmission of power to the 5-rotating brush can be cut off using a clutch mechanism provided in the middle of the flexible wire.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 2 and 3 show a vacuum cleaner according to an embodiment of the present invention, and FIGS. 4 and 5 show details of the clutch mechanism.

In Figures 2 and 3, 12 is the vacuum cleaner body;
3 is a floor nozzle. An electric blower 14 is installed vertically in the upper part of the vacuum cleaner body 12, and a first electric blower 14 is installed in parallel with the electric blower shaft 15.
The shaft 16 is supported by a first bearing 17. The electric blower pulley 18 attached to the electric blower shaft 16 and the first shaft pulley 19 attached to the first shaft 16 have a first
A belt 20 is passed around the belt. and the first axis 16
A power transmission shaft 21 on the main body side, such as a flexible wire, is connected to one end of the power transmission shaft 21 .

A rotating brush 22 is provided inside the floor nozzle 13, and a second shaft 23 is supported by a second bearing 24 in parallel with the rotating brush 22. A second belt 27 is passed around a rotating brush pulley 25 attached to the rotating brush 22 and a second shaft pulley 26 attached to the second shaft 23. Further, a floor nozzle side power transmission shaft 2B such as a flexible wire is connected to the other end of the second shaft 23.

Power transmission shaft 21 on the main body side and power transmission shaft 28 on the floor nozzle side
is connected to the clutch mechanism shown in FIGS. 4 and 5 at the bottom of the main body. That is, the power transmission shaft 21 on the main body side is connected to the clutch shaft 3o on the main body side, which is supported by a bearing 29, and the power transmission shaft 28 on the floor nozzle side is connected to the clutch shaft 3o on the main body side, which is supported by a bearing 29.
1.32, it is connected to a clutch shaft 33 on the floor nozzle side, which is pivotally supported so as to be movable in the axial direction. A switching lever 35 is attached to the clutch shaft 33 on the nozzle side j by a bearing 34, and a spring 36 is attached between the bearing 34 and the bearing 32. Further, the switching lever 3sld is held in the switched position by a switching lever plate spring 37. In addition, the clutch shaft 33 on the floor nozzle side
Even if there is some movement in the axial direction, the flexible wire of the power transmission shaft bends freely, so the movement can be absorbed by changing the curvature of the power transmission shaft on the floor nozzle side. The cleaner body 12 and the floor nozzle 13 are connected by a connecting pipe 3B. Also, a filter 39 is provided inside the vacuum cleaner body 12.
is provided, and a dust collection chamber 40 is configured below it.

About the vacuum cleaner configured as above.

The operation will be explained below.

The output of the electric blower 14 is transmitted from the electric blower shaft 15 to the electric blower pulley 18, to the first belt 20, to the first shaft pulley 1.
9, the power is transmitted from the first shaft 16 to the power transmission shaft 21 on the main body side.

When the switching lever 35 is set to earth, the spring 3
The convex part of the clutch shaft 33 on the floor nozzle side is pressed against the concave part of the clutch shaft 3o on the main body side by the force of 6, and the power transmission shaft 111121 on the main body side and the power transmission shaft 28 on the floor nozzle side are connected. from the second shaft pulley 26. The rotating brush 22 is rotationally driven via the second belt 27 and the rotating brush pulley 25. The dust separated from the surface to be cleaned by the rotating brush 22 is sucked through the connecting pipe 38 and accumulates in the dust collection chamber 40 below the filter 39.

When the switching lever 35 is moved downward, it is held in the lower position by the switching lever leaf spring 3γ as shown in FIG. The power of the transmission shaft 21 is not transmitted to the power transmission shaft 28 on the floor nozzle side, and the rotating brush 22Vi does not rotate.

As described above, according to this embodiment, power is transmitted from the electric blower 14 to the rotating brush 22 using the power transmission shafts 21 and 28, and a clutch mechanism is provided on the power transmission shaft at the lower part of the main body. Power can be transmitted from the vertically installed electric blower to the rotating brush, eliminating the need for an electric motor to drive the rotating plan, reducing weight and cost. Also, when cleaning carpets, the rotating brush can be rotated to clean floors, tatami mats, etc. If the rotating brush is not needed, the rotation of the rotating brush can be stopped.

Although a flexible wire is used as the power transmission shaft in this embodiment, other power transmission shafts may be used. Further, although the clutch mechanism is provided on the power transmission shaft at the bottom of the main body, it may be provided on the power transmission shaft at the top of the main body or in the floor nozzle.

Effects of the Invention As described above, the vacuum cleaner of the present invention transmits power from the electric blower to the rotating brush using a power transmission shaft such as a flexible wire, and by providing a clutch mechanism on this power transmission shaft, the electric blower can be operated. The structure is vertically placed to make the body thinner, shorten the suction distance, and reduce losses during the process.The rotating brush can be driven by an electric blower, and an electric motor for driving the rotating brush is no longer required, reducing weight and cost. Furthermore, the rotating brush can be stopped or rotated depending on the surface to be cleaned.

[Brief explanation of drawings]

Fig. 1 is a sectional view from the front of a conventional vacuum cleaner, Fig. 2 is a side sectional view of a vacuum cleaner according to an embodiment of the present invention, Fig. 3 is a front sectional view of the vacuum cleaner, and Fig. 4 shows a clutch. FIG. 5 is a detailed sectional view of the clutch mechanism when the clutch is engaged, and FIG. 5 is a detailed sectional view of the clutch mechanism when the clutch is disengaged. 12...Vacuum cleaner body, 13...Floor nozzle, 14...Electric blower, 21...Movement no + (reach axis on the main body side, 22... ...Rotating brush, 2
B... Floor nozzle charge (11 moving blade J transmission shaft, 3o
...Kura Sochi axis on the main body side, 33...Clutch shaft on the floor nozzle side, 36...Switching 1/'-0
Name of agent: Patent attorney Toshio Nakao +1-IJ・
1 personFigure 1Figure 2Figure 3Figure 5

Claims (1)

[Claims] The vacuum cleaner body includes an electric blower inside and a floor nozzle with a rotatable rotating brush inside. A vacuum cleaner with a clutch mechanism installed in the middle of the transmission shaft.